Pumps, disintegrator, effluent treatment, Environmental services, renewable energies, Energy, Environment, Effluent purification systems, biological, textile fixed bed, Sludge compacting equipment, effluent treatment, Digesters, anaerobic, effluent treatment, Filter-beds, screening, for coarse solids, effluent treatment, Pre-screening systems, single or multi-stage, water and effluent treatment, Biogas driers for sewage sludge treatment plant, Degassing equipment, vacuum, for sewage and effluent plant